Sony VPL-PX32 - Video Projector User manual

WORLD
SERVICE MANUAL
MODEL ..........
VPL-PX32
DATA PROJECTOR
...............
MODEL
RM-PJM15
............... DEST.
WORLD
..........
DEST.

VPL-PX32
WARNING!!
AN INSULATED TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD,
BECAUSE OF LIVE CHASSIS.
THECHASSISOFTHISRECEIVERISDIRECTLYCONNECTED
TO THE AC POWER LINE.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTSIDENTIFIEDBYA!MARKONTHESCHEMATIC
DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE
CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
ATTENTION!!
AFIN D’ÉVITER TOUT RISQUE D’ÉLECTROCUTION
PROVENANT D’UN CHÂSSIS SOUS TENSION, UN
TRANSFORMATEURD’ISOLEMENTDOITETRE UTILISÉ LORS
DE TOUT DÉPANNAGE.
LE CHÂSSIS DE CE RÉCEPTEUR EST DIRECTEMENT
RACCORDÉ Á L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS Á LA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MAPQUE !SUR
LES SCHÉMAS DE PRINCIPE, LES VUES EXPLOSÉES ET LES
LISTES DE PIECES SONT D’UNE IMPORTANCE CRITIQUE
POUR LA SÉCURITÉ DU FONCTIONNEMENT. NE LES
REMPLACER QUE PAR DES COMPOSANTS SONY DONT LE
NUMÉRO DE PIÈCE EST INDIQUÉ DANS LE PRÉSENT
MANUELOUDANSDESSUPPLÉMENTSPUBLIÉS PAR SONY.
!WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
!WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
!AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin
de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les
réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.
For the customers in the Netherlands
Voor de klanten in Nederland
.Gooi de batterij niet weg. maar lever hem
in als KCA.
NL

1
VPL-PX32
TABLE OF CONTENTS
1. Service Informations
1-1. Circuit Boards Location ..............................................................................1-1
1-2. Servicing Tools ...........................................................................................1-1
1-2-1. XA, XAA Extension Boards (70P) ............................................1-1
1-2-2. XB, XBB Extension Boards (50P) .............................................1-1
1-3. Cabinet Assy Removal ................................................................................1-2
1-4. Front Block Assy Removal .........................................................................1-2
1-5. NF Board Removal .....................................................................................1-3
1-6. BA and Y Boards Removal.........................................................................1-3
1-7. Power Block Removal.................................................................................1-4
1-8. G Block Assy (GA, GB, GC and GD Boards) Removal ............................1-4
1-9. C Board Removal ........................................................................................1-5
1-10. Optics Unit Assy Removal..........................................................................1-5
1-11. BC and KS Boards Removal.......................................................................1-6
1-12. Connector Block Assy Removal .................................................................1-6
1-13. BB, QA, QB, QC and QD Boards Removal ...............................................1-7
1-14. F, K Boards and AC Inlet Removal ............................................................1-7
1-15. Lens Assy Removal.....................................................................................1-8
1-16. Prism Block and Polarizer Removal ...........................................................1-8
1-17. Note on Lamp Breakage..............................................................................1-9
2. Electrical Adjustments
2-1. Equipment Required....................................................................................2-1
2-2. Preparations.................................................................................................2-1
2-2-1. Turning on the Power .................................................................2-1
2-2-2. Setting the Factory Mode ...........................................................2-1
2-3. C Board Adjustments ..................................................................................2-1
2-3-1. R VCOM Adjustments ...............................................................2-1
2-3-2. G VCOM Adjustments...............................................................2-1
2-3-3. B VCOM Adjustments ...............................................................2-1
2-4. Signal Level Adjustments ...........................................................................2-1
2-4-1. Component Level Adjustments..................................................2-1
2-4-2. VIDEO NTSC Level Adjustments .............................................2-2
2-4-3. VIDEO PAL Level Adjustments ...............................................2-2
2-4-4. Y/PB/PR Level Adjustments......................................................2-2
2-4-5. 15K RGB Level Adjustments ....................................................2-3
2-4-6. Adjustment of Signal Amplitude and Signal Center ..................2-3
2-5. W/B Adjustment..........................................................................................2-4
2-5-1. RGB W/B HIGH Adjustment ....................................................2-4
2-5-2. RGB W/B LOW Adjustment .....................................................2-4

2VPL-PX32
2-5-3. Component W/B HIGH Adjustment ..........................................2-5
2-5-4. Component W/B LOW Adjustment ...........................................2-5
2-6. Adjustments in Replacement of Prism and Optical Unit ............................2-6
2-6-1. V COM Adjustment ...................................................................2-6
2-6-2. Polarization Plate Adjustment ....................................................2-6
2-6-3. 3D GAMMA Adjustment (Outline)..........................................2-6
2-6-4. 3D GAMMA Adjustments .........................................................2-6
2-7. Adjustment Item Initialize Data ..................................................................2-7
3. Theory of Operation
3-1. BA Board ....................................................................................................3-1
3-1-1. Main IC Functions......................................................................3-1
3-1-2. Signal Path .................................................................................3-1
3-1-3. Path of SYNC Processing ..........................................................3-2
3-1-4. Clamp Pulse Generation Circuit.................................................3-2
3-2. BB Board.....................................................................................................3-3
3-3. BC Board.....................................................................................................3-4
3-4. C Board .......................................................................................................3-5
3-4-1. Timing Generator .......................................................................3-5
3-4-2. LCD Driver Control Pulse .........................................................3-5
3-5. Y Board .......................................................................................................3-6
3-5-1. Microprocessor peripheral circuit ..............................................3-6
3-5-2. USB Circuit ................................................................................3-7
3-5-3. Memory ......................................................................................3-8
3-5-4. Terminal Functions of MAIN CPU............................................3-9
3-6. Description of QA Board Operations........................................................3-10
3-6-1. Switching of Video Signals......................................................3-10
3-6-2. Switching of Audio Signals .....................................................3-11
3-6-3. Monitoring of the USB Power Supply .....................................3-11
3-7. Description of QB Board Circuit Operations............................................3-12
3-7-1. INPUT A Input.........................................................................3-12
3-7-2. DDC Memory...........................................................................3-12
3-7-3. INPUT A Mouse Driver ...........................................................3-12
3-8. Description of QC Board Circuit Operations............................................3-13
3-8-1. INPUT B Inputs .......................................................................3-13
3-8-2. DDC Memory...........................................................................3-13
3-8-3. INPUT A Mouse Driver ...........................................................3-13
3-9. Description of QD Board Circuit Operations............................................3-14
3-9-1. RS-232C Communication ........................................................3-14
3-9-2. Reception of Remote Control Signals ......................................3-14
3-9-3. Video Input...............................................................................3-14
3-10. Description of K Board Circuit Operations ..............................................3-14
3-11. Description of KS Board Circuit Operations ............................................3-14
3-12. Voltage Map of F, GA, GB, GC and GD Boards .....................................3-15

3
VPL-PX32
3-12-1. Voltages Map of F, GA, GB, GC and GD Boards ...................3-15
3-12-2. F Board .....................................................................................3-15
3-12-3. GA Board .................................................................................3-16
3-12-4. Main Converter ........................................................................3-19
3-12-5. Basic Operations of Sub-Converter .........................................3-20
3-12-6. Details of Parts .........................................................................3-21
3-12-7. GB, GC, and GD Boards ..........................................................3-22
4. Semiconductors ............................................................ 4-1
5. Spare Parts
5-1. Notes on Repair Parts..................................................................................5-1
5-2. Exploded Views ..........................................................................................5-2
5-3. Electrical Parts List for Boards ...................................................................5-7
5-4. Parts List for Frame...................................................................................5-35
5-5. Packing Materials......................................................................................5-35
6. Block Diagrams
Overall ....................................................................................................................6-1
QA ..........................................................................................................................6-4
QB...........................................................................................................................6-2
QC...........................................................................................................................6-2
QD ..........................................................................................................................6-3
BA...........................................................................................................................6-3
BB...........................................................................................................................6-6
BC...........................................................................................................................6-8
C .............................................................................................................................6-9
NF .........................................................................................................................6-10
NR.........................................................................................................................6-10
S ............................................................................................................................6-10
Y ...........................................................................................................................6-10
K ...........................................................................................................................6-11
KS .........................................................................................................................6-11
H ...........................................................................................................................6-11
F ............................................................................................................................6-12
GA (1/2)................................................................................................................6-12
GA (2/2)................................................................................................................6-13
GB.........................................................................................................................6-13
GC.........................................................................................................................6-13
GD ........................................................................................................................6-13

4VPL-PX32
7. Diagrams
7-1. Frame Schematic Diagram ..........................................................................7-1
7-2. Schematic Diagrams and Printed Wiring Boards........................................7-4
Schematic Diagrams
QA (1/3) ....................................................................................................7-6
QA (2/3) ....................................................................................................7-7
QA (3/3) ....................................................................................................7-8
QB (1/2) ..................................................................................................7-10
QB (2/2) ..................................................................................................7-11
QC (1/2) ..................................................................................................7-12
QC (2/2) ..................................................................................................7-13
QD...........................................................................................................7-15
BA (1/2) ..................................................................................................7-17
BA (2/2) ..................................................................................................7-18
BB (1/4) ..................................................................................................7-21
BB (2/4) ..................................................................................................7-22
BB (3/4) ..................................................................................................7-23
BB (4/4) ..................................................................................................7-24
BC (1/2) ..................................................................................................7-26
BC (2/2) ..................................................................................................7-27
C (1/3) ..................................................................................................7-29
C (2/3) ..................................................................................................7-30
C (3/3) ..................................................................................................7-31
NF ...........................................................................................................7-33
NR ...........................................................................................................7-33
S ..............................................................................................................7-33
Y (1/3) ..................................................................................................7-33
Y (2/3) ..................................................................................................7-34
Y (3/3) ..................................................................................................7-35
H..............................................................................................................7-36
K..............................................................................................................7-37
KS ...........................................................................................................7-37
F ..............................................................................................................7-39
GA (1/2) ..................................................................................................7-39
GA (2/2) ..................................................................................................7-40
GB ...........................................................................................................7-41
GC ...........................................................................................................7-41
GD...........................................................................................................7-42
Printed Wiring Boards
QA.............................................................................................................7-5
QB ...........................................................................................................7-10
QC ...........................................................................................................7-12
QD...........................................................................................................7-14
BA ...........................................................................................................7-16
BB ...........................................................................................................7-20
BC ...........................................................................................................7-25

5
VPL-PX32
C ..............................................................................................................7-28
NF ...........................................................................................................7-32
NR ...........................................................................................................7-32
S ..............................................................................................................7-32
Y..............................................................................................................7-32
H..............................................................................................................7-36
K..............................................................................................................7-37
KS ...........................................................................................................7-37
F ..............................................................................................................7-38
GA...........................................................................................................7-38
GB ...........................................................................................................7-41
GC ...........................................................................................................7-41
GD...........................................................................................................7-42

1-1
VPL-PX32
Section 1
Service Informations
1-1. Circuit Boards Location
1-2. ServicingTools
1-2-1. XA, XAA Extension Boards (70P)
.ForY board and QA board
(QA board use 2 pieces of XA and XAA board.)
1-2-2. XB, XBB Extension Boards (50P)
.For BA board.
XBB (A-1391-006-A)
XB (A-1391-007-A)
XA
(
A-1391-005-A
)
XAA (A-1391-004-A)
QD
Y
BA
QA
CBC
H
NR
K
F
GC
GB
GD
GA
S
KS
QC
QB
BB
NF
POWER BLOCK

1-2 VPL-PX32
1-3. Cabinet Assy Removal
2Lens cover(TP)
3Two screws(+B3 x8)
4Two screws(+B3 x8)
5Two screws(+B3 x8)
6Cabinet assy
1Push in claw
Driver_
CN3500
CN3501
1-4. Front Block Assy Removal
1Two screws
(+PWH3 x6)
Connector(black) 3P
Connector(white) 3P
2Front block assy

1-3
VPL-PX32
1-5. NF Board Removal
.Remove the Front Block Assy (Refer to 1-4.).
5Screw
(+PWH3 x6)
1
Screw
(+BVTP3 x12)
3Four screws
(+BVTP3 x12)
2Holder(FBHR)
4Aduster assy
6NF board
CN3600
1-6. BA andY Boards Removal
1Screw
(+PWH3 x6)
2PWB holder
4BA board
3Y board

1-4 VPL-PX32
1-7. Power Block Removal
3Two screws
(+PWH3 x6)
5Four screws
(+PWH3 x6)
CP501
1Two screws
(+PWH3 x6)
2Connector(2P)
4Holder(L)
6Power block
A
A
7screw
(+PWH3 x6)
1-8. G Block Assy (GA, GB, GC and GD Boards) Removal
3Screw
(+PWH3 x6)
1Three screws
(+PWH3 x6)
5Three claws
8GC board
2G block assy
7GB board
9GD board
6GA board
Earth plate(G)
Connector(3P)
CN2701
CN2502
CN2103
CN2104
CN2105
CN2301
4Screw
(+PWH3 x6)
CN2110
CN2111

1-5
VPL-PX32
1-9. C Board Removal
2Screw
(Terminal M3 x8)
3Spacer(C)
Connector(CN605)
1Two screws
(+PWH3 x6)
4C board
CN600
CN601
CN602
CN603
1-10. Optics Unit Assy Removal
.Remove the C Board (Refer to 1-9.).
2Two screws
(+PWH3 x6)
3Connector(2P)
1Four screws
(+PSW4 x12)
4Optics unit assy

1-6 VPL-PX32
1-11. BC and KS Boards Removal
.Remove the Optics Unit (Refer to 1-10.).
2
Two screws
(+PWH3 x6)
1BC board
3KS board
Connector(CN500)
Connector(CN502)
.Remove the KS Board (Refer to 1-11.).
1-12. Connector Block Assy Removal
1Three screws
(+PWH3 x6) 2Two spacers
3Connector block assy
CN308
CN310

1-7
VPL-PX32
1-13. BB, QA, QB, QC and QD Boards Removal
1Screw
(+PWH3 x6)
8Screw
(+PWH3 x6)
3Four screws
5Two screws
(+BM2 x6)
6Two screws
(+PM2 x6)
4Four screws
7Three screws
(+PWH3 x8)
2PWB holder
!; QD board ![ QA board
!= BA board
!- Y board
!/ BB board
!] QB board
!\ QC board
9Connector panel
.Remove the G Block Assy (Refer to 1-8.).
.Remove the Optics Unit Assy (Refer to 1-10.).
1-14. F, K Boards and AC Inlet Removal
2Screw
(+PSW4 x12) GND
1Two screws
(+PWH3 x6) 3Holder(F)
5F board
Insulator sheet(F)
8Two screws
(+PWH3 x6)
0Two screws
(+K3 x6)
!- AC inlet(3P)
9Holder(AC)
4Four screws
(+PWH3 x6)
6Two screws
(+PWH3 x6)
7K board

1-8 VPL-PX32
.Remove the C Board (Refer to 1-9.).
1-16. Prism Block and Polarizer Removal
1-15. Lens Assy Removal
1Four screws
(+PSW4 x12)
2Lens assy
1Four screws
(+P3 x5)
3Screw
(+PSW3 x8)
8Screw
(+PSW3 x8)
2Cover
9Rch-in polarizer
![ Bch-in polarizer
!- Gch-in polarizer
Flexible cable
7Bch-out polarizer
6Gch-out polarizer
5Rch-out polarizer
4Prism block
Note:
!= Screw
(+PSW3 x8)
!/ Screw
(+PSW3 x8)
Use extreme care not to touch the
glass section of prism,LCD,and
conductive section of the flexible
cable in particular.

1-9
VPL-PX32
1-17. Note on Lamp Breakage
Note 1
When the lamp broken, its broken pieces may remain inside the unit.
Take off all the pices with gloves using care about a hand cut, before replacing.
Then, the fly-eye lens may be cloudy at the lamp breakage, at that time wipe the suface of the lens with an
authorized lens cleaner kit.
.Cleaner (4-075-337-01)
. Wiper (4-075-338-01)
Note 2
Under the consideration of lamp’s reliability, set the lamp mode to “LOW” during repairing the unit with
the cabinet opening and the lamp on.

2-1
VPL-PX32
Section 2
Electrical Adjustments
2-1. Equipment Required
.Oscilloscope
Tektronix 2465 or equivalent
(bandwidth: 350 MHz or more)
.NTSC, PAL, SECAM component signal generator
Tektronix TG2000 +AVG1 (optional module)
+AWVG1 (optional module) or equivalent
.VG (Programmable video signal generator)
VG814 or equivalent
.Digital voltmeter
Advantest TR6845 or equivalent
.Luminance meter
2-2. Preparations
2-2-1. Turning on the Power
1. Connect the power cord and supply the power to the
unit.
2. Check that the STANDBY LED of the control panel
lights up in red.
n
Perform the following adjustments at least 5 minutes after
turning on the power.
2-2-2. Setting the Factory Mode
1. Check that the STATUS in the menu is ON.
2. Exit the Menu.
3. Press the keys in the following order:
“ENTER” → “ENTER” → “←” →“ENTER”.
The message “Do you with to enter into the FACTORY
MODE?” will be displayed.
Select YES on the menu to set the unit into the factory
mode.
2-3. C Board Adjustments
2-3-1. R VCOM Adjustments
Turn off the menu using the STATUS OFF during adjustments.
(No shield is required.)
1. Enter the R DRV of the device adjust by the factory
mode and check the 1 line ON/OFF signal.
2. Adjust the “←” and “→” keys to minimize the flicker.
2-3-2. G VCOM Adjustments
1. Enter the G DRV of the device adjust by the factory
mode and check the 1 line ON/OFF signal.
2. Adjust the “←” and “→” keys to minimize the flicker.
2-3-3. B VCOM Adjustments
1. Enter the B DRV of the device adjust by the factory
mode and check the 1 line ON/OFF signal.
2. Adjust the “←” and “→” keys to minimize the flicker.
2-4. Signal Level Adjustments
2-4-1. Component Level Adjustments
1. Connect the component signal to INPUT-A (5BNC),
and select COMPONENT with SIGNAL SELECT.
(15K Component color bar Chroma ON)
2. Set the COLOR to 40.
3. Connect the oscilloscope to TP605 (B OUT) on the C
board.
4. Enter the OTHER of the device adjust of the menu.
5. Set 06 3D GAMMA/TROUGH:0 to 06 3D GAMMA/
TROUGH:1.
6. Set 07 GAMMA/SW:1 to 07 GAMMA/SW:0.
7. Adjust GND level to the bottom edge in the DC 0.5 V
range.
8. Set the input signal to component color bar.
9. Select 12 YUV COL. Adjust the “←” and “→” keys
so that the levels of the right bar and the left bar
become the same.
10. Select 05 SUB HUE. Adjust the “←” and “→” keys so
that the two bars at the center become flat.

2-2 VPL-PX32
11. Set the signal to 10 step signal, set the cursor at the top
of the oscilloscope to 100IRE.
12. Press the ENTER key to select the SAVE TO 12.
MEMORY of the menu, and press the ENTER key
again to save the data.
2-4-2. VIDEO NTSC Level Adjustments
1. Set the Color to 40. Input the NTSC 100 % Color bar
signal to the VIDEO input, and switch the input to
VIDEO.
The RGB MATRIX of device adjust of the menu is
set.
2. Connect the oscilloscope to TP605 on the C board.
3. Select 12 YUV COL, and adjust the “←”and “→”
keys so that the levels of the right bar and left bar
become the same.
4. Select 05 SUB HUE, and adjust the “←”and “→”
keys so that the two bars at the center become flat.
5. Press the “ENTER”key to select the SAVE TO
MEMORY of the menu, and press the “ENTER”key
again to save the data.
15k Component
color bar
chroma ON
NTSC 100%
color bar
PAL 100%
color bar
1080/60i 100
%
color bar
2-4-3. VIDEO PAL Level Adjustments
1. Set the Color to 40. Input the PAL 100 % Color bar signal
to the VIDEO input.
BA MATRIX of device adjust on the menu is set.
2. Connect the oscilloscope to TP605 on the C board.
3. Select 12 YUV COL, and adjust the “←”and “→”
keys so that the levels of the right bar and left bar
become the same.
4. Select 04 SUB HUE, and adjust the “←”and “→”
keys so that the two bars at the center become flat.
5. Press the “ENTER”key to select the SAVE TO
MEMORY of the menu, and press the “ENTER”key
again to save the data.
2-4-4. Y/PB/PR Level Adjustments
1. Set the Color to 50.
2. Input the HDVS (1080/60i) 100 % Color bar (YPbPr)
signal to INPUT-A, select INPUT-A, and select Y/PB/
PR using SIGNAL SELECT.
3. Set RGB MATRIX of Device adjust on the menu.
4. Select 11 YUV COM, and adjust using the “←”and
“→”keys so that the level of the left bar becomes the
same as the level of the cursor at the top.
5. Select 12 YUV COL, and adjust using the “←”and
“→”keys so that the levels of the right bar and left
bar become the same.
6. Select 04 SUB HUE, and adjust using the “←”and “→”
keys so that the two bars at the center become flat.
7. Press the “ENTER”key to select the SAVE TO
MEMORY of the menu, and press the “ENTER”key
again to save the data.